Hi

I have Acura RL 2007. I can see strange behavior. When temperature outside is quite low all works properly, When is hot outside and especially after long waiting for green light acceleration is more than poor. I am able to accelerate very slowly even pushing acceleration pedal fully.
If I keep acceleration pedal pressed in 20-30% after some hundred of meters car again starts to accelerate as usual.
I have clean air filter, properly serviced engine oil, AWD and transmission. I have new spark plugs either coils. Also incoming air temperature sensor has been replaced. Engine temperature is all the time normal - not too hot.

What could be the reason?

 

Maybe your brakes are sticking?

 

No. Brakes also are OK

 

Sticky throttle plate?

 

Only when hot?

 

What's the mileage on the car? What octane fuel you use? May be the o2 sensors are bad or get your fuel system pressure checked. It could be as simple as a nad fuel or maybe the cat is clogged up.

 

I think about o2 sensors replacement. Rather not fuel when I have the same symptoms using gasoline either propane-butane (LPG - quite common in EU).